B07B 9/00
Combinations of apparatus for screening or sifting or for separating solids from
Official title: Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
B07B9/00 (Combinations of apparatus for screening or sifting or for separating solids from) appears on 609 US grants and 317 published applications in this corpus.
Search patents in B07B- Granted patents
- 609
- Published applications
- 317
- Assignees
- 389
- Inventors
- 1,015
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 24 | 0 |
| 1982 | 12 | 0 |
| 1983 | 17 | 0 |
| 1984 | 28 | 0 |
| 1985 | 19 | 0 |
| 1986 | 21 | 0 |
| 1987 | 20 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 17 | 0 |
| 1991 | 14 | 0 |
| 1992 | 13 | 0 |
| 1993 | 14 | 0 |
| 1994 | 30 | 0 |
| 1995 | 21 | 0 |
| 1996 | 15 | 0 |
| 1997 | 11 | 0 |
| 1998 | 7 | 0 |
| 1999 | 14 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 0 |
| 2002 | 8 | 7 |
| 2003 | 4 | 10 |
| 2004 | 8 | 9 |
| 2005 | 9 | 7 |
| 2006 | 6 | 12 |
| 2007 | 4 | 6 |
| 2008 | 1 | 11 |
| 2009 | 4 | 7 |
| 2010 | 5 | 10 |
| 2011 | 12 | 11 |
| 2012 | 9 | 8 |
| 2013 | 6 | 9 |
| 2014 | 12 | 13 |
| 2015 | 10 | 27 |
| 2016 | 7 | 18 |
| 2017 | 28 | 15 |
| 2018 | 16 | 17 |
| 2019 | 16 | 17 |
| 2020 | 12 | 18 |
| 2021 | 14 | 23 |
| 2022 | 13 | 19 |
| 2023 | 14 | 13 |
| 2024 | 17 | 14 |
| 2025 | 10 | 9 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and process for sorting and recovery of recyclable materials from mixed waste6 Oct 2026US 12,752,306 B1Wm Intellectual Property Holdings, L.L.C.
- Gas flow separation of powdered metal11 Aug 2026US 12,703,008 B2Rtx Corporation
- Compact device for sorting bulk solid products16 Jun 2026US 12,654,203 B2
- Gravel circulation dry electrostatic precipitator26 May 2026US 12,636,660 B2Metro Engineering Co., Ltd.
- Air classifier19 May 2026US 12,629,722 B2Volt Carbon Technologies Inc.
- Method for cleaning bulk material, and separating device13 Aug 2026US 2026/0233253 A1Wittmann Technology GmbH
- Method for the separation and recovery of plastics and contaminants through multi-stage separation process13 Aug 2026US 2026/0233268 A1
- Silver powder13 Aug 2026US 2026/0233301 A1Dowa Electronics Materials Co., Ltd.
- Methods for preparing petroleum coke proppant particles for hydraulic fracturing23 Apr 2026US 2026/0108917 A1ExxonMobil Technology and Engineering Company
- Compact device for sorting bulk solid products16 Apr 2026US 2026/0102790 A1Demetra S.R.L.
Most cited
By later US patents
- Screening device and process111US 4,678,560 ANorton Company · 1987
- Mechanical sorting system for crude silicon carbide97US 4,728,043 ANorton Company · 1988
- Method and apparatus for recovering fuel and other resources from refuse utilizing disk screens87US 4,341,353 ARader Companies, Inc. · 1982
- Carpet recycling process and system85US 5,535,945 ABASF SE · 1996
- Method of treating solid waste, recovering the constituent materials for recycling and reuse, and producing useful products therefrom60US 5,649,785 A1997